Stefan,

On Wed, Sep 16 2020 at 12:12, Stefan Bühler wrote:

sorry for the delay. This fell through the cracks.

> this quirk breaks our serial ports PCIe card (i.e. we don't see any 
> output from the connected devices; no idea whether anything we send 
> reaches them):
>
> 05:00.0 PCI bridge: PLX Technology, Inc. PEX8112 x1 Lane PCI Express-to-PCI 
> Bridge (rev aa)
> 06:00.0 Serial controller: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 
> UART) function 0 (Uart)
> 06:00.1 Bridge: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 UART) 
> function 0 (Disabled)
> 06:01.0 Serial controller: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 
> UART) function 0 (Uart)
> 06:01.1 Bridge: Oxford Semiconductor Ltd OX16PCI954 (Quad 16950 UART)
> function 0 (Disabled)

Can you please provide the output of:

 for ID in 05:00.0 06:00.0 06:00.1 06:01.0 06:01.1; do lspci -s $ID -vvv; done

Thanks,

        tglx

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